| 摘要 |
A system includes first and second illuminating devices respectively having different first and second identification numbers indicative of locations and/or serial numbers of the illuminating devices. A parameter of one of voltage, temperature, resistance, and power of a lighting unit of each illuminating device is detected. The parameter and the identification number of each illuminating are encoded into a packet. The second illuminating device receives the packet of the first illuminating device and sends the packets of the first and second illuminating devices to a control center. The control center decodes the packets and judges operational states of the illuminating devices based on the parameters detected. A control signal is sent by the control center to open or close or control brightness of at least one of the illuminating devices when at least one of the illuminated devices is judged as operating abnormally after judging the parameters detected.
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